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    • 2. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2008282674A
    • 2008-11-20
    • JP2007125901
    • 2007-05-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORISASAMOTO KENICHIRO
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To propose a fuel cell system capable of suppressing overdrying due to scavenging processing.
      SOLUTION: The fuel cell system includes an AC impedance measurement part 92 and a scavenging execution duration estimation part 94. The AC impedance measurement part measures a first AC impedance of a fuel cell at the scavenging start time so as to measure a second AC impedance of a fuel cell at the time when a temperature change speed drops to less than a prescribed threshold if the first AC impedance is less than a prescribed value. While, if the first AC impedance exceeds a prescribed value, the AC impedance measurement part measures the second AC impedance of the fuel cell at the time with the elapse of a predetermined fixed period of time from the scavenging start time. The scavenging execution duration estimation part estimates a scavenging execution duration on the basis of the first AC impedance, the second AC impedance, and an elapsed time from the time when measuring the first AC impedance until the time when measuring the second AC impedance.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提出能够抑制由清扫处理引起的过度干燥的燃料电池系统。 解决方案:燃料电池系统包括AC阻抗测量部分92和扫气执行持续时间估计部分94.AC阻抗测量部分在扫气开始时间测量燃料电池的第一AC阻抗,以测量第二 如果第一AC阻抗小于规定值,则当温度变化速度下降到小于规定阈值时,燃料电池的交流阻抗。 而如果第一AC阻抗超过规定值,则AC阻抗测定部从扫气开始时刻开始经过规定的固定时间后,测量燃料电池的第二AC阻抗。 清扫执行持续时间估计部基于第一AC阻抗,第二AC阻抗以及从测量第一AC阻抗直到测量第二AC阻抗的时刻的经过时间来估计清除执行持续时间。 版权所有(C)2009,JPO&INPIT
    • 3. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2008282659A
    • 2008-11-20
    • JP2007125448
    • 2007-05-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORISASAMOTO KENICHIRO
    • H01M8/04H01M8/10
    • H01M8/04649H01M8/04156H01M8/04223H01M8/04365H01M8/0485H01M8/04955H01M8/04992H01M2008/1095
    • PROBLEM TO BE SOLVED: To propose a fuel cell system capable of minimizing the moisture contents inside a fuel cell in preparation for the next start-up.
      SOLUTION: The fuel cell system includes an AC impedance measurement part 92, which measures an AC impedance of a fuel cell at the scavenging start time while measuring an AC impedance of a fuel cell at the time with the elapse of a prescribed period of time from the scavenging start time, a scavenging execution duration estimation part 94, which estimates a scavenging execution duration on the basis of the AC impedance measured at the scavenging start time, the AC impedance measured at the time with the elapse of the prescribed period of time from the scavenging start time, and the prescribed period of time, and a limiting part 95 that limits a scavenging execution duration to a maximum scavenging duration when the scavenging execution duration exceeds a predetermined maximum scavenging duration.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提出一种燃料电池系统,其能够使燃料电池内的水分含量最小化以准备下一次启动。 解决方案:燃料电池系统包括AC阻抗测量部分92,其测量在清除开始时刻的燃料电池的AC阻抗,同时测量燃料电池在经过规定周期时的AC阻抗 清扫开始时间的清扫执行持续时间估计部94基于在清扫开始时刻测定的AC阻抗来估计清除执行持续时间,在规定期间经过时测定的AC阻抗 清除开始时间和规定时间段的时间;以及限制部分95,其在清除执行持续时间超过预定的最大扫描持续时间时将清除执行持续时间限制为最大清除持续时间。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2006339078A
    • 2006-12-14
    • JP2005164511
    • 2005-06-03
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORI
    • H01M8/04B60L11/18H01M8/06H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of eliminating the possibility of lowering of insulation resistance caused by generated water, and shortening the length of piping.
      SOLUTION: Blocking parts 22, having an upper face 23 formed so as to close a part of width-directional cross section of a pipe 17, are formed in the pipe 17. The blocking parts 22 block downward flow of generated water, by contacting the generated water flowing from above toward below in the pipe 17. The generated water, contacting the upper face 23 of the blocking part 22 spreads on the upper face 23, reaches a peripheral part 24 thereof, and falls as drops of water therefrom. Accordingly, the flow of the generated water is segmented.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够消除由产生的水引起的绝缘电阻降低的可能性的燃料电池系统,并且缩短管道的长度。 解决方案:具有形成为封闭管17的宽度方向横截面的一部分的上表面23的封闭部22形成在管17中。阻挡部22阻止产生的水的向下流动, 通过在管17中将从上方流向下方的生成水接触,使与阻塞部22的上表面23接触的产生的水在上表面23上扩散,到达其周边部24, 。 因此,生成的水的流动被分段。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2005203313A
    • 2005-07-28
    • JP2004010611
    • 2004-01-19
    • Denso CorpNippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社デンソー株式会社日本自動車部品総合研究所
    • MAEDA MASASHIKADOKAWA MASARUKIKUCHI TETSUOHOUCHIYOU SHINJIIMAMURA TOMONORIKATO MANABU
    • H01M8/02
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To prevent flooding in a fuel gas passage without using a heating means. SOLUTION: This fuel system comprises: an MEA 1 having an electrolyte film; a separator 2 at an oxidative gas side with an oxidative gas passage 21 formed thereon; a separator 3 at a fuel gas side with a fuel gas passage 31 formed thereon; a heat insulating layer 4 between cooling water passages 24, 34; and a fuel gas passage 31 which is composed of a material with thermal conductivity lower than that of the separator 3 at the fuel gas passage gas side. The fuel gas becomes hard to be cooled than the oxidative gas by the heat insulating layer 4, and therefore the temperature of the fuel gas is higher as compared to the temperature of the oxidative gas and the partial pressure of the water vapor of the fuel gas becomes higher than the partial pressure of the water vapor of the oxidative gas. By the difference between partial pressures of water vapor, moisture at the side of a fuel gas is moved to the side of the oxidative gas through the electrolyte film, and as a result, the flooding in the fuel gas passage 31 with the flow velocity thereof lower than that at the side of the oxidative gas can be prevented. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了防止燃料气体通道中的溢流而不使用加热装置。 解决方案:该燃料系统包括:具有电解质膜的MEA 1; 氧化气体侧的隔膜2,其上形成氧化气体通道21; 在燃料气体侧具有形成在其上的燃料气体通道31的分离器3; 冷却水通道24,34之间的绝热层4; 以及燃料气体通路31,其由在燃料气体通路气体侧的导热率低于隔板3的材料构成。 与绝热层4的氧化气体相比,燃料气体难以冷却,因此燃料气体的温度与氧化气体的温度和燃料气体的水蒸汽的分压相比较高 变得高于氧化性气体的水蒸气的分压。 通过水蒸汽的分压差,燃料气体一侧的水分通过电解质膜向氧化气体侧移动,结果,燃料气体通路31的流入速度为 可以防止低于氧化气体一侧的氧化气体侧。 版权所有(C)2005,JPO&NCIPI
    • 6. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2008282658A
    • 2008-11-20
    • JP2007125447
    • 2007-05-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORISASAMOTO KENICHIRO
    • H01M8/04H01M8/00H01M8/10
    • H01M8/04753H01M8/04253H01M8/04529H01M8/04619H01M8/04649H01M8/0485H01M8/04955H01M2008/1095
    • PROBLEM TO BE SOLVED: To propose a fuel cell system capable of executing fail-safe processing when a scavenging execution duration cannot be accurately estimated.
      SOLUTION: The fuel cell system is provided with an AC impedance measurement part 92, which measures an AC impedance of a fuel cell at the scavenging start time while measuring an AC impedance of a fuel cell at the time with the elapse of a prescribed period of time from the scavenging start time, a scavenging execution duration estimation part 94, which estimates a scavenging execution duration on the basis of the AC impedance measured at the scavenging start time, the AC impedance measured at the time with the elapse of the prescribed period of time from the scavenging start time, and the prescribed period of time, and an abnormality processing part 95 that forcibly terminates scavenging processing when an AC impedance cannot be measured at the time with the elapse of the prescribed period of time from the scavenging start time.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提出一种能够在清除执行持续时间不能被准确估计时能够执行故障安全处理的燃料电池系统。 解决方案:燃料电池系统设置有AC阻抗测量部分92,其测量在扫气开始时刻的燃料电池的AC阻抗,同时测量燃料电池在随后的燃料电池的AC阻抗 清扫开始时间的规定时间段,清扫执行持续时间估计部94,其基于在清扫开始时刻测定的AC阻抗来估计清除执行持续时间,在经过了时间时测量的AC阻抗 从清扫开始时刻起规定的时间段和规定时间段,以及异常处理部95,当从清扫开始到经过规定时间段时不能测量到AC阻抗时强制终止清除处理 开始时间。 版权所有(C)2009,JPO&INPIT
    • 7. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2008251258A
    • 2008-10-16
    • JP2007088870
    • 2007-03-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORI
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of correcting a target alternate current impedance at a scavenging completion time point to an appropriate value.
      SOLUTION: The fuel cell system utilizes that corrected amounts (Z3' to Z3) of the target alternate current impedance Z3 at the scavenging completion time point has a proportional relation with error amounts (Z4 to Z4') of the alternate current impedance measured at the time point (time t5) when a prescribed time has elapsed from the scavenging completion time point (time t3), and corrects the target alternate current impedance Z3 based on the error amounts (Z4 to Z4').
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够在扫气完成时间点将适当值校正目标交流阻抗的燃料电池系统。 解决方案:燃料电池系统利用在扫气完成时间点的目标交流阻抗Z3的校正量(Z3'至Z3)与交流电流阻抗的误差量(Z4至Z4')成比例关系 在时刻t3(时刻t3)经过了规定时间后的时间点(时刻t5),根据误差量(Z4〜Z4')来校正目标交流阻抗Z3。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Fuel battery system
    • 燃油电池系统
    • JP2008034309A
    • 2008-02-14
    • JP2006208675
    • 2006-07-31
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORI
    • H01M8/04
    • Y02E60/50
    • PROBLEM TO BE SOLVED: To sufficiently scavenge a fuel battery according to the output capacity of a secondary battery at power generation stoppage. SOLUTION: A fuel battery system 10 includes a fuel battery stack 30, an air compressor which supplies a scavenging gas to the fuel battery stack 30 at power generation stoppage, the secondary battery 76 which supplies operation power to the air compressor, and a temperature sensor 93 which detects the temperature of the secondary battery 76. A controller 20 estimates a scavenging time set for supplying the scavenging gas to the fuel battery stack 30 at power generation stoppage on the basis of the temperature of the secondary battery 76, and estimates a scavenging start temperature set for scavenging residual water content in the fuel battery stack 30 within the scavenging time. A cooling unit 60 increases the temperature of the fuel battery stack 30 to the scavenging start temperature. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:根据二次电池在发电停止时的输出容量,充分清除燃料电池。 燃料电池系统10包括燃料电池堆30,在发电停止时向燃料电池堆30供给清扫气体的空气压缩机,向空气压缩机供给运行电力的二次电池76以及 温度传感器93,其检测二次电池76的温度。控制器20基于二次电池76的温度,估计在发电停止时向燃料电池组30供应清扫气体的清除时间,以及 估计在扫气时间内清除燃料电池堆30中的残留水分含量的清除开始温度。 冷却单元60将燃料电池组30的温度升高到扫气开始温度。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2006332002A
    • 2006-12-07
    • JP2005157699
    • 2005-05-30
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORI
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To suppress waste of power by enabling warming-up of a fuel cell without using a temperature sensor for controlling the temperature of the fuel cell when warming it up.
      SOLUTION: This fuel cell system is equipped with a heater to warm up the fuel cell, a thermostat switch which is switched off to stop energizing the heater if the temperature around itself reaches a prescribed temperature higher than the temperature at the time when warming-up of the fuel cell is started, a first temperature sensor to detect a temperature for determining whether warming-up is performed or not and for controlling the temperature of the fuel cell when warming up the fuel cell, an abnormality detecting means to detect the abnormality of the first temperature sensor, a second temperature sensor to detect the temperature used for determining whether warming-up is performed or not in lieu of the first temperature sensor if the abnormality of the first temperature sensor is detected, a determining means to determine whether warming-up is performed or not based on the output of the second temperature sensor, and a control means to start supplying power to the heater when the determining means determines to perform warming-up, and to stop supplying power after that, if switching-off of the thermostat switch is detected.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过在不使用用于控制燃料电池的温度的温度传感器的情况下燃料电池的预热来抑制浪费电力。 解决方案:该燃料电池系统配备有加热器以预热燃料电池,如果温度开关关闭,则如果其周围的温度达到比当前温度高的规定温度 开始燃料电池的预热,第一温度传感器,用于检测用于确定是否进行预热的温度,以及用于在燃料电池预热时控制燃料电池的温度;异常检测装置,用于检测燃料电池 如果检测到第一温度传感器的异常,则第一温度传感器的异常,用于检测用于确定是否进行预热的温度的第二温度传感器代替第一温度传感器;确定装置,用于确定 是否基于第二温度传感器的输出执行预热;以及控制装置,当第二温度传感器输出时开始向加热器供电 e确定装置确定执行预热,并且在此之后停止供电,如果检测到恒温器开关的关闭。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2008282675A
    • 2008-11-20
    • JP2007125903
    • 2007-05-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMAMURA TOMONORI
    • H01M8/04H01M8/10
    • H01M8/0432H01M8/04223H01M8/04559H01M8/04589H01M8/04649H01M8/04671H01M8/04753H01M8/0494H01M8/04947H01M8/04955H01M2008/1095H01M2250/20Y02T90/32
    • PROBLEM TO BE SOLVED: To propose a fuel cell system capable of executing fail-safe processing for preventing a fuel cell from being overdried.
      SOLUTION: The fuel cell system includes an AC impedance measurement part 92, which measures an AC impedance of a fuel cell at the scavenging start time while measuring an AC impedance of a fuel cell at the time with the elapse of a prescribed period of time from the scavenging start time, a scavenging execution duration estimation part 94, which estimates a scavenging execution duration on the basis of the AC impedance measured at the scavenging start time, the AC impedance measured at the time with the elapse of the prescribed period of time from the scavenging start time, and the prescribed period of time, and an abnormality processing part 95 that forcibly terminates scavenging processing when a cell voltage of a fuel cell drops below a prescribed threshold during a period from the scavenging start time until the time with the elapse of the prescribed period of time.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提出一种能够执行防止燃料电池过度干扰的故障安全处理的燃料电池系统。 解决方案:燃料电池系统包括AC阻抗测量部分92,其测量在清除开始时刻的燃料电池的AC阻抗,同时测量燃料电池在经过规定周期时的AC阻抗 清扫开始时间的清扫执行持续时间估计部94基于在清扫开始时刻测定的AC阻抗来估计清除执行持续时间,在规定期间经过时测定的AC阻抗 以及规定时间段的时间的异常处理部95以及在从清扫开始时刻直到时刻为止的燃料电池的电池电压低于规定的阈值时强制终止清扫处理的异常处理部95 随着时间的推移。 版权所有(C)2009,JPO&INPIT